Question

Which one of the following statements about atomic structure is false?

A) An atom is mostly empty space.

B) Almost all of the mass of the atom is concentrated in the nucleus.

C) The protons and neutrons in the nucleus are very tightly packed.

D) The number of protons and neutrons is always the same in the neutral

atom​

Answer 1

Explanation:

D) The number of protons and neutrons is always the same in the neutral

atom

Answer 2

Option (A) is a false statement, An atom is mostly empty space.

Explanation:

• A) is a false statement as Atoms are not mostly empty space as there is no such thing as purely empty space. But the space is filled with a wide variety of particles and fields
• B) is a true statement Almost all of the mass of the atom is concentrated in the nucleus. As the electrons rotate around the nucleus.
• C)  is a true statement, The protons and neutrons in the nucleus are very tightly packed.
• D)  is a true statement, The number of protons and neutrons is always the same in the neutral.
• The nucleus is a positively charged region that is at the center of the atom. It consists of mainly two types of subatomic particles packed tightly together. The particles are protons, which have a positive electric charge, and neutrons, which are neutral in electric charge.
• The molecules and ions aggregate rein together in large numbers from the matter. We cannot see the individual molecules/ions with our eyes.